<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>花边边框</title>
    <link rel="shortcut icon" href="../lib/image/favicon.ico" type="image/x-icon">
    <link rel="stylesheet" href="../lib/css/all.css">

</head>
<style>
    .box {
        width: 100px;
        height: 100px;
        border: 15px solid transparent;
        border-image: url(https://www.runoob.com/images/border.png) 30 30 round;
    }
</style>

<body>
    <div id="app">
        <div class="box">

        </div>
    </div>
</body>

</html>